Director/PDMR Shareholding

UNITED UTILITIES GROUP PLC

1 AUGUST 2016

NOTIFICATION OF TRANSACTIONS OF DIRECTORS/PDMRs

VESTING OF SHARES UNDER THE LONG TERM PLAN 2013 ("LTP")

This notification is made in accordance with Disclosure Rule 3.1 of the Disclosure Rules and Transparency Rules and article 19(3) of the Market Abuse Regulation.

On 29 July 2016, Equiniti Trust (Jersey) Limited, being the trustee of the United Utilities Employee Share Trust transferred to each director/PDMR named below the beneficial interest in such number of shares in the capital of the Company (identification number GB00B39J2M42) ("Shares") as are set out against that director/PDMR's name for nil consideration in satisfaction of the vesting of awards made under the LTP to each named director/PDMR on 29 July 2013. On 29 July 2016, each director/PDMR concerned sold the number of Shares set out against their name in the table below for the price disclosed below. All transactions disclosed below took place in England:

All of the persons identified in the preceding table notified the Company of the transfer of the beneficial interest in the Shares to them and, where applicable, the subsequent sale of Shares (as disclosed above) on 29 July 2016 pursuant to Disclosure Rule 3.1.2AEU of the Disclosure and Transparency Rules and article 19(1) of the Market Abuse Regulation.

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Further information can be obtained from:

Jane Gilmore, Deputy Company Secretary +44 1 925 237052

United Utilities Group PLC's ordinary shares trade on the London Stock Exchange and its ADRs, each equal to two ordinary shares, trade over the counter under the Trading Symbol "UUGRY".